How to use cds view in abap program

You can find our other blogs on CDS here. The crux of HANA in terms of data processing is to take the processing to the database to make it faster and to eliminate any lag due to network etc.

Data-intensive operations can be performed in the database layer itself using the Code to Data paradigm. Usually, in cases where native execution is desired, Open SQL is the first instrument for ABAP developers for pushing down data-intensive processing to the database layer, but, if re-use of data models or features such as Union and Association are required, then Core Data Services must be used.

Core Data Services is a collection of domain-specific languages DSLs and services for defining and consuming semantically rich data models. Entity definitions and the semantic relationships between entities can be developed using CDS. The metamodels for an application that requires code pushdown can be built using CDS views. A CDS view is more powerful than an SE11 view as it describes an open source DDL for building a meta-model repository involving database tables, database views, functions, and data types.

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Search for:. Keep up with our latest Blogs Please leave this field empty Thank you for subscribing to our blogs. December 1 November 2 September 1 July 1 June 1.Throughout this tutorial, objects name include the suffix XXX. Always replace this with your group number or initials. The new view appears in an editor. Ignore the error for now. In this editor, enter the following values:. You will now model the relationships between data sources by using some existing CDS associations.

You can use associations in path expressions to access elements fields and associations in related data sources without specifying JOIN conditions. To see the related data sources that can be accessed using associations, scroll down. Each element in the path expression must be separated by a period.

Add the association header to your selection list, preferably with a comment, by adding the following the code. Remove the existing declaration, header. Your CDS View should look like this:. Join the conversation on Facebook. Join the conversation on Twitter. Subscribe to the YouTube Channel. Join the conversation on LinkedIn.

View our projects on GitHub. Share via email. If you do not, your CDS view will display empty. Step 1: Create a CDS view. Select Data Definitionthen choose Next. Select the entry Define Viewthen choose Finish. Step 2: Enter the data source. Step 4: Use an existing CDS association. Step 5: Add fields from existing associations. View Full Instructions. Step 8: Check your code and view your changes. Step 9: Test yourself.

Which of the following is not a valid association path? Choose one answer only. Submit Answer. Next Steps.Enter the correct package and a name for your duplicated program, then choose Next. Ignore the Generic Node Key field.

how to use cds view in abap program

You can change the visibility of fields in a SAP List Viewer, but this is beyond the scope of this tutorial :. Try to display the tooltip information for the Paid column by positioning the cursor on the column heading. Notice that, in our case, the information is either missing or incorrect depending on your version. We will change this information in the CDS view using an annotation. For more information, see Create a CDS view. If you have already created a data element in the tutorial Create a data elementthen use this and go to step 5.

If not, you will receive an error. Proceed as follows:. Note: You can open the online help for the CAST statement by positioning the cursor on the cast keyword and choosing F1. Join the conversation on Facebook. Join the conversation on Twitter. Subscribe to the YouTube Channel. Join the conversation on LinkedIn. View our projects on GitHub.

Using SAP Standard program in ABAP CDS View

Share via email. Select the program and choose Duplicate from the context menu. Assign or create a transport request and choose Finish. Step 3: Add ALV grid to method implementation. You will now replace the implementation of the RUN method with a new implementation: Delete the existing statements in the method. Execute your program by choosing Execute F8.

Step 4: Set the tooltip information with an annotation. Run the program again. Step 5: Optional: Create a data element. View Full Instructions. Step 7: Check the code and execute the program. Step 8: Test yourself. Choose one answer only. Submit Answer. Next Steps. Navigate tutorial steps. QR Code. Call me now.CDS views push the logic to the database because they take most of the logic from an ABAP application and execute it on the database, instead of on the application server.

The views use Open SQL. The type of database system is irrelevant — it does not have to be a HANA database. The views use Native SQL.

Their technical compatibility is not guaranteed, because. Best Regards!

how to use cds view in abap program

Excellent blog! Which is better approach, and why? A good point — goes straight into the article. Hi, Thanks for the blog. Its a nice read. I am in need of this formal doc from SAP to submit to my manager for my project. Thanks, Ibrahim! Hello Paul, the Tableau release note One quick question. I think what you mean by analytics is Embedded Analytics. Bullseye blog! And a last provacation. Thanks again for the great blog and all that Inui do! I have a question regarding data extraction to 3rd party databases.

For those purposes, Core Data Services seem to work perfectly. This article is simple and brief still worthy to have high level picture on CDS views and their comparison. Please correct me if I am wrong. Thanks, Narendra. Your email address will not be published. Post Comment. CDS Views. Get that overview! Latest Poll.

SAP ABAP CDS Views vs. SAP HANA CDS Views – What Are the Differences?

Yes No. This field is for validation purposes and should be left unchanged. Essential Ressources. Leave new. I really appreciate your reply. I get your point.GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together. Enter the correct package and a name for your duplicated program, then choose Next. Ignore the Generic Node Key field.

You can change the visibility of fields in a SAP List Viewer, but this is beyond the scope of this tutorial :. Try to display the tooltip information for the Paid column by positioning the cursor on the column heading. Notice that, in our case, the information is either missing or incorrect depending on your version. We will change this information in the CDS view using an annotation. For more information, see Create a CDS view. If you have already created a data element in the tutorial Create a data elementthen use this and go to step 5.

If not, you will receive an error. Proceed as follows:.

calling CDS view with parameters in Report

Note: You can open the online help for the CAST statement by positioning the cursor on the cast keyword and choosing F1. Skip to content. Permalink Dismiss Join GitHub today GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together.

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how to use cds view in abap program

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Well, this is also true for the underlying data models of the business applications. It is logical to conclude, from the Paradigm-shift of Code Pushdown, that to enable real-time businesses in HANA, we need some of these services ideally also brought closer to the database as well. For SAP this presented several challenges. High-quality data models should provide a single definition and format for the data.

They should be clear and unambiguous, reusable and flexible, even extensible. So how can you capture the semantics of the data model in the database so that the model can be easily reused by different consumers, e. How can you extend the meta-model to service your applications? What is the solution…? Once transported, an ABAP CDS View will create and deploy the corresponding database view on the target database automatically requiring no additional steps for the developer or transport manager.

Next, we will go through a brief step-by-step guide on how to create a CDS view, as well as features of the DDL source file. Step 4: Select the transport to which you want the DDL source file attached. Step 5: Choose the template you would like to begin with. Table functions are an option as well, but that will be covered in the future AMDP blog. This view will also illustrate the basic structure used for DDL source files.

how to use cds view in abap program

Take a look at the screen-shot below. We will go into each of the red boxed subsections in detail. When Eclipse generates the CDS View template to work with, it also creates a skeleton for the initial annotations you see in this example. There are more Annotations available to CDS beyond the ones listed here, and fully covering all the Annotations would require an entire blog itself. This section will usually come after the opening Annotations but before the first curly bracket.

Within this section, the developer specifies:. After the first curly bracket comes the desired fields from the table, as well as any fields that are to be computed.

This is the section that a developer will primarily utilize to take advantage of code-pushdown to allow the database to perform calculations. In our example, we are converting the billing status indicator into its real-world English meaning.


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